Quarterly report [Sections 13 or 15(d)]

Securities - Schedule of Securities with Gross Unrealized Losses Not Recognized in Income (Details)

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Securities - Schedule of Securities with Gross Unrealized Losses Not Recognized in Income (Details) - USD ($)
$ in Thousands
Sep. 30, 2025
Dec. 31, 2024
Debt Securities, Available-for-Sale [Line Items]    
Estimated Fair Value, Less than 12 months $ 0 $ 3,310
Unrealized losses, less than 12 months 0 (156)
Estimated Fair Value, 12 months or longer 335,150 330,244
Unrealized losses, 12 months or longer (64,813) (76,258)
Estimated Fair Value, Total 335,150 333,554
Unrealized losses, total $ (64,813) $ (76,414)
Percentage of Total Portfolio in Loss Position 100.00% 100.00%
Number of securities, Unrealized losses, Less than 12 months 0 4
Number of securities, Unrealized losses, 12 months or longer 411 409
Number of securities, Unrealized losses, Total 411 413
U.S. government sponsored entities    
Debt Securities, Available-for-Sale [Line Items]    
Estimated Fair Value, Less than 12 months $ 0 $ 0
Unrealized losses, less than 12 months 0 0
Estimated Fair Value, 12 months or longer 8,386 8,061
Unrealized losses, 12 months or longer (498) (823)
Estimated Fair Value, Total 8,386 8,061
Unrealized losses, total $ (498) $ (823)
Percentage of Total Portfolio in Loss Position 100.00% 100.00%
Collateralized mortgage obligations and residential mortgage-backed securities    
Debt Securities, Available-for-Sale [Line Items]    
Estimated Fair Value, Less than 12 months $ 0 $ 0
Unrealized losses, less than 12 months 0 0
Estimated Fair Value, 12 months or longer 106,293 109,325
Unrealized losses, 12 months or longer (20,705) (26,649)
Estimated Fair Value, Total 106,293 109,325
Unrealized losses, total $ (20,705) $ (26,649)
Percentage of Total Portfolio in Loss Position 100.00% 100.00%
Municipal securities    
Debt Securities, Available-for-Sale [Line Items]    
Estimated Fair Value, Less than 12 months $ 0 $ 3,310
Unrealized losses, less than 12 months 0 (156)
Estimated Fair Value, 12 months or longer 218,855 211,439
Unrealized losses, 12 months or longer (43,081) (48,049)
Estimated Fair Value, Total 218,855 214,749
Unrealized losses, total $ (43,081) $ (48,205)
Percentage of Total Portfolio in Loss Position 100.00% 100.00%
Collateralized debt obligations    
Debt Securities, Available-for-Sale [Line Items]    
Estimated Fair Value, Less than 12 months $ 0 $ 0
Unrealized losses, less than 12 months 0 0
Estimated Fair Value, 12 months or longer 1,616 1,419
Unrealized losses, 12 months or longer (529) (737)
Estimated Fair Value, Total 1,616 1,419
Unrealized losses, total $ (529) $ (737)
Percentage of Total Portfolio in Loss Position 100.00% 100.00%